CN203238806U - Reinforced layer of variable damper - Google Patents

Reinforced layer of variable damper Download PDF

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Publication number
CN203238806U
CN203238806U CN 201320202543 CN201320202543U CN203238806U CN 203238806 U CN203238806 U CN 203238806U CN 201320202543 CN201320202543 CN 201320202543 CN 201320202543 U CN201320202543 U CN 201320202543U CN 203238806 U CN203238806 U CN 203238806U
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China
Prior art keywords
adaptive damping
web member
enhancement layer
truss
diagonal web
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Expired - Fee Related
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CN 201320202543
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Chinese (zh)
Inventor
陆新征
蒋庆
卢啸
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Tsinghua University
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Tsinghua University
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Abstract

A reinforced layer of a variable damper comprises a core barrel in the middle of a building and a plurality of frame columns arranged on the periphery of the building. An outrigger of the variable damper is connected between the core barrel and the frame columns, and annular trusses, connected into a whole, of the variable damper are adopted in connection among the peripheral frame columns. The outrigger of the variable damper can enhance lateral stiffness of the whole structure and reduce horizontal lateral move of the structure. The annular trusses of the variable damper can enhance connection among the peripheral frame columns, enhance structure integrity, coordinate frame vertical deformation, reduce vertical deformation difference and enable the structure to be stressed evenly. The structure that a viscous damper is arranged on a buckling restrained brace is adopted in a diagonal web member of the variable damper, therefore, deformation and creep of the structure under temperature load can be released, internal force of the structure can be reduced, under the effect of wind load, the main energy consumption member of the structure is the viscous damper, and under the effect of earthquakes at the design intensity and above the design intensity, the main energy consumption member of the structure is the buckling restrained brace.

Description

A kind of enhancement Layer of adaptive damping
Technical field
The utility model belongs to the civil structure engineering field, particularly a kind of enhancement Layer of adaptive damping.
Background technology
Along with expanding economy, a large amount of construction super highrise buildings have become the main trend of urban construction, a lot of super highrise buildings form of structure of having adopted the intercooler core cylinder to combine with peripheral frame is wherein coordinated force and deformation between Core Walls Structure and framework by enhancement Layer is set.Enhancement Layer is usually placed in technological layer (building implements layer, refuge story), first floor is high highly often for it, the large decades of times of other horizontal member of ratio of rigidity, therefore claim that also enhancement Layer is rigid layer, the enhancement Layer member has three types: the one, and semi-girder, the 2nd, hoop member, the 3rd, waist truss and cap truss.
Enhancement Layer can effectively improve the anti-side rigidity of structure, reduce the horizontal sidesway of structure under wind load or geological process, but enhancement Layer and near floor, the rigidity sudden change of structure, under geological process, the micromechanism of damage of structure is difficult to present the ductile yield mechanism of " strong column and weak beam " and " strong shear capacity and weak bending capacity ", enhancement Layer and near floor thereof are easy to form weak floor because stress is concentrated, cause structural damage even collapse, therefore for the rigidity of enhancement Layer, considering on the one hand increases integrally-built anti-side rigidity, and the rigidity of enhancement Layer is the bigger the better; Consider on the other hand the problem of rigidity of structure sudden change, the rigidity of enhancement Layer is unsuitable excessive, so research and develop a kind of enhancement Layer, make overall structure reach predetermined anti-seismic performance target, under the rarely occurred earthquake effect, can play the energy-dissipating and shock-absorbing effect, have important practical significance.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of enhancement Layer of adaptive damping, can effectively improve the anti-side rigidity of structure and wind resistance and anti-seismic performance.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of enhancement Layer of adaptive damping comprises being arranged at the Core Walls Structure 1 in the middle of the building and being arranged at some frame columns 2 of building external, is connected the semi-girder truss 3 of adaptive damping between described Core Walls Structure 1 and the frame column 2.
Described semi-girder truss 3 is semi-girder or waist truss or cap truss.
Described semi-girder truss 3 includes parallel upper chord 6 and lower chord 9, and perpendicular web member 8, adaptive damping diagonal web member 5 and common diagonal web member 7 are set between upper chord 6 and the lower chord 9.
Described adaptive damping diagonal web member 5 is by preventing that buckling support 11 and the viscous damper 10 that cooperates with anti-buckling support 11 consist of.
Described upper chord 6, lower chord 9 and perpendicular web member 8 adopt steel work.
The enhancement Layer height of described adaptive damping is one deck floor height or two-layer floor height.
Described semi-girder truss 3 is vertical with frame column 2, and a plurality of semi-girder truss 3 form fenestral fabric.
Be provided with the hoop truss 4 of adaptive damping around described frame column 2.
Described hoop truss 4 includes parallel upper chord 6 and lower chord 9, perpendicular web member 8, adaptive damping diagonal web member 5 and common diagonal web member 7 are set between upper chord 6 and the lower chord 9, wherein adaptive damping diagonal web member 5 is mutually vertical with common diagonal web member 7, and is arranged between upper chord 6 and the lower chord 9.
Compared with prior art, the beneficial effects of the utility model are: structure can be out of shape under temperature load and creep and loosened, reduce the internal force of structure, under wind action, the main dissipative member of structure is mainly viscous damper, when structure under fortification intensity and above geological process, the main dissipative member of structure is anti-buckling support, effectively improve the anti-side rigidity of structure and wind resistance and anti-seismic performance, can adjust comparatively flexibly according to the needs of structure again simultaneously the rigidity of enhancement Layer, prevent structure under geological process enhancement Layer and near floor be easy to form weak floor because stress is concentrated.
Description of drawings
Fig. 1 is the utility model floor map.
Fig. 2 is the utility model semi-girder truss schematic diagram.
Fig. 3 is the utility model adaptive damping diagonal web member schematic diagram.
The specific embodiment
Describe embodiment of the present utility model in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of enhancement Layer of adaptive damping, its objective is in order to improve the anti-side rigidity of structure and wind resistance and anti-seismic performance, by the semi-girder truss 3 of adaptive damping and hoop truss 4 in conjunction with the original structure composing system, the original structure system comprises the some frame columns 2 that are arranged at the middle Core Walls Structure 1 of building and are arranged at building external, semi-girder truss 3 is connected between Core Walls Structure 1 and the frame column 2, and is vertical with frame column 2, and a plurality of semi-girder truss 3 form fenestral fabric.Hoop truss 4 arranges around a plurality of frame columns 2.In actual applications, semi-girder truss 3 only is set sometimes, hoop truss 4 is not set.The purpose of semi-girder truss 3 is the axle power that increases frame column 2, so that the overturning or slip resistance analysis moment of framework also is improved, thereby plays the purpose that increases the anti-side rigidity of overall structure.Hoop truss 4 can be strengthened the contact of external surrounding frame trestle 2, plays the effect of strengthening structural integrity, also plays simultaneously the coordinating frame vertical deformation, reduces the poor effect of vertical deformation, can make it stressed evenly.The semi-girder truss 3 of adaptive damping and the hoop truss of the adaptive damping 4 general steel work that adopt.
Semi-girder truss 3 is consistent with hoop truss 4 structures, as shown in Figure 2, includes parallel upper chord 6 and lower chord 9, and perpendicular web member 8, adaptive damping diagonal web member 5 and common diagonal web member 7 are set between upper chord 6 and the lower chord 9.Semi-girder truss 3 utilizes the height of a floor in the reality, upper chord 6 and lower chord 9 are the beam of original structure system, and perpendicular web member 8 is post and the Core Walls Structure of original structure system, and the pressurized diagonal web member is common diagonal web member 7, adopt anti-buckling support, the tension diagonal web member adopts adaptive damping diagonal web member 5.
As shown in Figure 3, adaptive damping diagonal web member 5 is by preventing that buckling support 11 and the viscous damper 10 that cooperates with anti-buckling support 11 consist of, viscous damper 10 can so that structure under temperature load, be out of shape and creep and loosened, reduce the internal force of structure, under wind action, the speed of adaptive damping diagonal web member 5 is less, viscous damper 10 is exerted oneself less, anti-buckling support 11 is stressed less, the main dissipative member of structure is mainly viscous damper 10, when structure under fortification intensity and above geological process, the speed of adaptive damping diagonal web member 5 increases, viscous damper 10 increase of exerting oneself, anti-buckling support 11 stressed increases, the main dissipative member of structure is anti-buckling support 11.

Claims (10)

1. the enhancement Layer of an adaptive damping, comprise the some frame columns (2) that are arranged at the middle Core Walls Structure (1) of building and are arranged at building external, it is characterized in that, be connected the semi-girder truss (3) of adaptive damping between described Core Walls Structure (1) and the frame column (2).
2. the enhancement Layer of adaptive damping according to claim 1 is characterized in that, described semi-girder truss (3) is semi-girder or waist truss or cap truss.
3. the enhancement Layer of adaptive damping according to claim 1, it is characterized in that, described semi-girder truss (3) includes parallel upper chord (6) and lower chord (9), and perpendicular web member (8), adaptive damping diagonal web member (5) and common diagonal web member (7) are set between upper chord (6) and the lower chord (9).
4. the enhancement Layer of adaptive damping according to claim 3 is characterized in that, described adaptive damping diagonal web member (5) is made of the viscous damper (10) of preventing buckling support (11) and cooperating with anti-buckling support (11).
5. according to claim 3 or the enhancement Layer of 4 described adaptive dampings, it is characterized in that, described upper chord (6), lower chord (9) and perpendicular web member (8) adopt steel work.
6. the enhancement Layer of adaptive damping according to claim 1 is characterized in that, the enhancement Layer height of described adaptive damping is one deck floor height or two-layer floor height.
7. the enhancement Layer of adaptive damping according to claim 1 is characterized in that, described semi-girder truss (3) is vertical with frame column (2), and a plurality of semi-girder truss (3) form fenestral fabric.
8. the enhancement Layer of adaptive damping according to claim 1 is characterized in that, is provided with the hoop truss (4) of adaptive damping around described frame column (2).
9. the enhancement Layer of adaptive damping according to claim 8, it is characterized in that, described hoop truss (4) includes parallel upper chord (6) and lower chord (9), perpendicular web member (8), adaptive damping diagonal web member (5) and common diagonal web member (7) are set between upper chord (6) and the lower chord (9), wherein adaptive damping diagonal web member (5) is mutually vertical with common diagonal web member (7), and is arranged between upper chord (6) and the lower chord (9).
10. the enhancement Layer of adaptive damping according to claim 9 is characterized in that, described adaptive damping diagonal web member (5) is made of the viscous damper (10) of preventing buckling support (11) and cooperating with anti-buckling support (11).
CN 201320202543 2013-04-19 2013-04-19 Reinforced layer of variable damper Expired - Fee Related CN203238806U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103233526A (en) * 2013-04-19 2013-08-07 清华大学 Reinforcement layer with variable damping
CN106013451A (en) * 2016-07-15 2016-10-12 广州容柏生建筑结构设计事务所 Multi-layer sealing frame structure for connecting inner and outer cylinders

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103233526A (en) * 2013-04-19 2013-08-07 清华大学 Reinforcement layer with variable damping
CN103233526B (en) * 2013-04-19 2015-08-19 清华大学 A kind of enhancement Layer of adaptive damping
CN106013451A (en) * 2016-07-15 2016-10-12 广州容柏生建筑结构设计事务所 Multi-layer sealing frame structure for connecting inner and outer cylinders
CN106013451B (en) * 2016-07-15 2019-07-02 广州容柏生建筑结构设计事务所 A kind of close mount structure of multilayer connecting inner/outer tube

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20131016

Termination date: 20160419